(CNN) -- Entertainer Michael
Jackson died after being taken to a hospital on Thursday having suffered cardiac
arrest, the Los Angeles County coroner's office said. He was 50.

A Los
Angeles fire official told CNN that paramedics arrived at Michael Jackson's home
after a 911 call.

Paramedics took Jackson from his west Los Angeles home
Thursday afternoon to UCLA Medical Center, where a team of physicians attempted
to resuscitate him for more than an hour, said his brother Jermaine Jackson. He
said the famed singer was pronounced dead at 2:26 p.m. PT.

An autopsy is
scheduled Friday, Jermaine Jackson said. Results are expected Friday afternoon,
according to Lt. Fred Corral of the Los Angeles coroner's office, who added that
Jackson was unresponsive when he arrived at the hospital.

Fire Capt.
Steve Ruda told CNN paramedics were sent to a west Los Angeles, California,
residence after a 911 call came in at 12:21 p.m.

Law enforcement
officials said the Los Angeles Police Department robbery-homicide department
opened an investigation into Jackson's death. They stressed there is no evidence
of criminal wrongdoing. Still, officials said they would conduct interviews with
family members and friends.

"I talked to Frank Dileo,
Michael's manager. Frank told me that Michael last night was complaining about
not feeling well. He called to tell him he wasn't feeling
well.

"Michael's doctor went over to see him, and Frank said, 'Marlon,
from last night to this morning, I don't know what happened.' When they got to
him this morning, he wasn't breathing. They rushed him to the hospital and
couldn't bring him around."

Michael Jackson, the music icon from Gary, Indiana, was
known as the "King of Pop." Jackson had many No. 1 hits and his "Thriller" is
the best-selling album of all time.

Jackson was the seventh of nine
children from a well-known musical family. He is survived by three children,
Prince Michael I, Paris and Prince Michael II.

Jackson's former wife,
Lisa Marie Presley, said she was "shocked and saddened" by Jackson's death. " My
heart goes out to his children and his family," she said.

At the medical
center, every entrance to the emergency room was blocked by security guards.
Even hospital staffers were not permitted to enter. A few people stood inside
the waiting area, some of them crying.

A large crowd gathering outside
the hospital could be seen on video footage.

Some of Jackson's music was
being played outside. The sounds of "Thriller" and "Beat It" bounced off the
walls.

Outside Jackson's Bel Air home, police arrived on motorcycles.
The road in front of the home was closed in an attempt to hold traffic back, but
several people were gathered outside the home.

Jackson had some legal
troubles later in his career.

He was acquitted of child molestation
charges after a well-publicized trial in Santa Maria, California, in March
2006.

Prosecutors charged the singer with four counts of lewd conduct
with a child younger than 14; one count of attempted lewd conduct; four counts
of administering alcohol to facilitate child molestation; and one count of
conspiracy to commit child abduction, false imprisonment or
extortion.